StoichiometryMole Concept and Number of Atoms306Choose the best answerOne mole of CH₄ contains:A1 mol carbon atomsB4 mol hydrogen atomsC5 mol atoms in totalDA, B and C Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Atomic Mass Unit307Choose the best answerOne atomic mass unit (1 u) is defined as:A1/16 of the mass of one oxygen-16 atomB1/12 of the mass of one carbon-12 atomC1/14 of the mass of one nitrogen-14 atomD1/10 of the mass of one neon-20 atom Like 0 Discuss 0Share
MDCAT Chemistry Past PapersIBA MDCAT Chemistry Paper Reconduct 2024#Mole Calculations#Stoichiometry308Choose the best answer9.8g of H₂SO₄ has been dissolved in excess of water to ionize it completely. How many number of H⁺ ions will it yield? (IBA MDCAT Reconduct 2024)A1.204 × 10²³B1.204 × 10²⁴C1.802 × 10²⁴D6.02 × 10²³ Like 0 Discuss 0Share
StoichiometryMole–Volume Stoichiometry309Choose the best answerSodium reacts with water: 2Na + 2H₂O → 2NaOH + H₂ What volume of H₂ at STP is produced by 20 mol Na?A762 LB112 LC448 LD224 L Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Chemical Changes310Choose the best answerWhich observation is the strongest evidence that a chemical reaction has occurred?AA substance changes its shapeBA new gas is formed during the reactionCA solid is broken into smaller piecesDSugar dissolves in water Like 0 Discuss 0Share